Home / 19,118.04-26,382-10,620.72

Finding the Fourth Proportional to 19,118.04, 26,382 and 10,620.72

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Solution

The fourth proportional to 19,118.04, 26,382 and 10,620.72 is: 14,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.04 : 26,382 = 10,620.72 : x
  2. Step 2: Convert to fraction form
    19,118.04/26,382 = 10,620.72/x
  3. Step 3: Cross multiply
    19,118.04x = 26,382 × 10,620.72
  4. Step 4: Simplify right side
    19,118.04x = 280,195,835.04
  5. Step 5: Solve for x
    x = 280,195,835.04/19,118.04
  6. Step 6: Final answer
    x = 14,656.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.